I have to ask myself how in the hell Daniel Murphy would have the knowledge to be able to report with his unfounded authority..."It's clear that Dent changed his teachings on techniques such as the swing Dutchman becasue it was too "unreliabel to teach" ?
His spelling seems to be almost as poor as his sawyer skills .
Of course, the answer to my question is that he has read my replies to questions close to the same as yours, Ty. And now adopts a position of having intimate knowledge of Doug Dent's mind on these matters. That is patently false.
He never had a single conversation with D.D. Dent, that he has reported. He never took one of his falling/bucking certification classes, that he has reported.
I think Daniel Murphy is not without skills, in his niche. But he is also pretty clearly a massive egotist, and one with some sort of strange need to belittle his peers rather than meet them as equals.
I have repeatedly credited you in earlier threads with bringing the information about Dent's changes on the swing Dutchman as first-hand knowledge. I have never claimed to have any first-hand knowledge on the matter. I said "it's clear". I didn't say Dent told me, or make any indication that I attended his classes.
Your false accusations violate the 10 commandments, bearing false witness, which you obviously have little regard for. And once again you resort to personal attacks and name calling, but offer no support. You even stoop to criticizing my spelling because that's all you got.
If you want to have an intelligent conversation about tree work, I'm in. If you want to make yourself out to have superior knowledge, you'll have to tell me something I don't know, as I have done to you many times.
And just to prove that point, I'll do it again here...
You said in post 308:
“In my experience, topping good-sized tops in conifers, to minimize the push back as the top goes over and thus minimize the back and forth motion of the stem you're riding, setting a narrower face than normal is expeditious.
The reason is pretty obvious...if the topped section closes it's face earlier in the fall, breaks the hinge and separates from the stem sooner, the time that the resulting opposite force bears on the stem is less. Less time pushing away from the felling direction means less initial movement in that plane, and that translates into less rebound...and thus the back and forth sway thereafter.
I don't have any reason to think a conventional or humbolt face is better or worse at this. I like a humbolt aloft, but that's just because I can cut it with the top of the bar easier than with a conventional, and I like sending the saw chips away from me whenever possible, cutting at chest high or higher as one does when topping”
You’re basically saying when topping large trees, you prefer a Humboldt because it’s easier to cut and keeps the sawdust away, but the Humboldt is no better or worse than the a conventional for topping cuts.
I was just going to let that go, so as not to have to embarrass you again for making such a foolish statement, but you just asked for it.
The Humboldt is far superior to the conventional as a topping cut for many reasons that go far beyond keeping the sawdust out of your pockets.
First and foremost, as is COMMON KNOWLEDGE, the Humboldt will tend to keep the but from sliding back off the cut into the climber’s lap (far better than the conventional, which creates a plane that wants to push the but straight back). Therefore, if there is any chance the top will contact another tree while it still has a high angle, the Humboldt is a huge safety factor.
What to my knowledge has never been taught elsewhere, and I figured out from countless hours of studying videos in slow motion, is that the Humboldt creates far cleaner separation than the conventional. Basically, the Humboldt quickly rips the hinge, creating separation shortly after the face closes. The conventional will hold on for another 10 to 15 degrees longer than the Humboldt with some variability depending on the species and size of hinge, momentum of top etc. That variability makes it harder to judge exactly when the top will separate. The tendency of the conventional to hold on for another 10 to 15 degrees makes it possible to get earlier separation from the Humboldt, As seen in the “throwing a big pine top” video.
So in situations where the climber needs to be more accurate in determining the angle of the top at separation (such as throwing tops forward or jumping) the Humboldt is far superior. Also because the Humboldt rips the hinge faster and with less force, the acceleration of the top needed to throw it is more impeded by a conventional, which means you can get more forward distance from a Humboldt.
The tendency of a conventional take more time to break the hinge will also increase push back or sway on those tall west coast conifers.
My theory as to why the conventional holds on so much longer is that the leverage of the Humboldt, creates a situation where the tensioned forces are concentrated in the back of the hinge, tearing the hinge quickly from the back to front. Whereas the conventional spreads the forces more evenly across the width of the hinge, which then takes a lot more force to break.
There is also another factor going on which creates a much different effect. I AM pretty sure it goes like this. The inclined plane of the lower Humboldt face takes some of the backward pushing force of the leaning top and directs it forward and down, rather than back. This will also reduce push back.
And last but not least, in a situation where a top hangs up, it’s a lot easier to kick it off the stem, when there is an inclined plane of the Humboldt to use. Otherwise a big enough top on a conventional notch would push down back into the stem and not budge.
So Burnham, while many here may idolize you for teaching them how to keep sawdust out of their pockets, your lack of knowledge in this matter is clear. Most especially, your inability to emphasize the important safety factors of topping with a Humboldt shows your low level of understanding. So while you are all pumped up becasue you attended Dent's classes, I can teach you things that he couldn't.